<!DOCTYPE html>

<div style="position: absolute; width: 200px; height: 200px; background: lightgray"></div>

<div style="position: absolute; width: 200px; height: 200px; top: 50px; left: 50px; background: lightblue"></div>
<div id="target" style="position: absolute; width: 200px; height: 200px; top: 100.45px; left: 100.45px; background: red"></div>
